Fracture resistance of CAD/CAM milled versus direct hand-made interim laminate veneers

Autor: Salahaldeen Abuhammoud, Banan Emtier, Chin-Chuan Fu, Silvia Rojas-Rueda, Carlos A. Jurado, Kelvin I. Afrashtehfar
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Saudi Dental Journal, Vol 36, Iss 6, Pp 920-925 (2024)
Druh dokumentu: article
ISSN: 1013-9052
DOI: 10.1016/j.sdentj.2024.04.002
Popis: Background: Comparative studies of interim veneer restorations crafted using subtractive computer-aided manufacturing (s-CAM) milling technology and traditional direct hand-made approaches are needed. Purpose: This comparative in vitro study evaluated the fracture resistance of two types of provisional veneer restorations for maxillary central incisors: milled (s-CAM) and traditional direct hand-made bis-acryl veneers. Materials and methods: Fifty maxillary right central incisor veneers (25 specimens per group) were fabricated and divided according to the fabrication method: (1) s-CAM milled (Structure CAD, VOCO Dental); and (2) hand-made (Protemp Plus, 3M). The restorations were cemented onto 3D-printed resin dies using temporary cement and subjected to 1000 cycles of thermal cycling between 5° and 55 °C. These restorations subsequently were subjected to compressive loading until fracture occurred. Images of the fractured samples were captured using a scanning electron microscope (SEM). Statistical analysis was performed using the one-way ANOVA test and the Mann-Whitney U test. Results: Significant differences (p
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